Question

The density of liquid mercury is 13.69 g/cm3^33. How many atoms of mercury are in a 13.6 mL sample? Use “E” for “×10" and use significant figures.

Answer #1

Gold has a density of 19.3 g/cm3, and quartz has a
density of 2.65 g/cm3. A sample of quartz contains gold.
If the quartz sample has a mass of 10 g and a volume of 3
cm3, what is the mass in grams of gold in the quartz
sample?

How many copper atoms does it contain? [The volume of a sphere
is (4/3)πr3 and the density of copper is 8.96 g/cm3.]

How many kilograms of phosphorous are in a sample containing
4.75E+30 phosphorous atoms? Use “E” for “×10" and use significant
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g
2. As a "rule of thumb" there are 20 drops of a liquid in a mL.
Using this estimate and a density of 1.685, how many moles are in 9
drops of 85 % by weight phosphoric acid? Give two significant
digits. Given molecular weight: 98 g
3. Starting with 9.6 g of salicylic acid, how many...

1. When 90 grams of water is evaporated, how many atoms of
hydrogen was lost?
2. How many picoliters of water are in 3.32 mol of water?
3. How many centiliters of sulfuric acid are in 32.9 x
10-23 molecules of acid? The density of sulfuric acid is
1.84 g/cm3.
4. How many daL of bromine are in 15.7 x 1022
molecules? (The density of bromine is 3.1 g/cm3)
5. How many daL of bromine atoms are in 9- x...

A 76.00-pound flask of mercury costs $158.50. The density of
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mercury by calculating the following intermediate values. Find the
price of one cubic inch of mercury by calculating the following
immediate value. A) What is the price of one pound of mercury?
B)What is the price of one gram of mercury? C)What is the price of
one cubic centimeter of mercury? D)What is the price of one...

The density of lead (Pb) is 11.34 g/cm^3. How many atoms of Pb
are present in a cube of Pb that has a length of 8.00 mm on each
side? Please show all work and calculations in detail.

A titanium cube contains 3.15 ×1023 atoms. The density of
titanium is 4.50 g/cm3. What is the edge length of the cube?

How much would 0.700 mol of 3-pentanol weigh?
3-Pentanol is a liquid with a density of 0.815 g/mL. What would
be the volume of 0.700 mol of 3-pentanol, in mL?
If you have 14.6 g of ethanol, how many moles do you have?

1.
A 14.9 g sample of an aqueous solution of
hydrobromic acid contains an unknown amount of the
acid.
If 13.5 mL of 0.583 M
sodium hydroxide are required to neutralize the
hydrobromic acid, what is the percent by mass of
hydrobromic acid in the mixture?
2.A 14.0 g sample of an aqueous solution of
nitric acid contains an unknown amount of the
acid.
If 26.6 mL of 0.725 M
barium hydroxide are required to neutralize the
nitric acid, what...

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